Replay Value
Let me start off by saying that these are both long-ass games. A single playthrough of either game can go up to 100 hours and beyond, and any form of replay value after that is just a nice added bonus.
That said, it’s worth noting that Persona games typically have only one canon ending, and the same holds true for Persona 5. There’s a bad ending that’s just completely unsatisfying, and a true ending, which usually gives you access to even more content and a heartwarming ending cutscene leading into the credits.
Shin Megami Tensei V features multiple endings as well, and all of them are equally satisfying and could be considered canon. Your ending in the game depends on the choices you’ve made along the way, which determines your overall alignment. Every path in SMT V comes with its pros and cons, and it’s up to you to decide which path you like more.
Because of that, Shin Megami Tensei V provides a lot more replay value if you choose to go back to it after your first ending. There’s always more to discover.
Winner: Shin Megami Tensei V.